BGS mineralogy and petrology collection record

Sample number S430; S430/A; S430/B; COLLNO1698;
Sample Donor Macconachie,A.F.
Rock name 'Original entry: Hypersthene Andesite'
Stratigraphy Not entered
Comments "Porphyrite"
Locality details Dean Burn, SW of White Hill, Pentlands
50k map sheet Edinburgh (32)

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Map reference NT 210 671
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S430/A

Cross Polarized, S430/A

Plane Polarized, S430/A

Plane Polarized, S430/A


S430/B

Cross Polarized, S430/B

Plane Polarized, S430/B

Plane Polarized, S430/B